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Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Bythaelurus: bythos (Gr.), depths of the sea, referring to its deepwater habitat; ailouros (Gr.), cat, probably an allusion to the vernacular “catshark,” so named for its cat-like eyes. (See ETYFish); lutarius: Latin for “of the mud,” referring to its habitat on or just above muddy bottoms at 338-766 m. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
laut batidemersal; kisaran kedalaman 338 - 766 m (Ref. 5510). Deep-water; 13°N - 29°S
Western Indian Ocean: off Mozambique (Ref. 5578) and Somalia.
Length at first maturity / Size / Weight / umur
Maturity: Lm ?, range 30 - ? cm
Max length : 34.0 cm TL jantan/; (Ref. 244); 39.0 cm TL (female)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 0; Duri dubur: 0. A slender, dwarf catshark with a moderately long snout and short labial furrows; caudal fin without crest of enlarged denticles (Ref. 5578). Dull grey-brown, paler ventrally, with few poorly defined dorsal saddles that may be visible (Ref. 5510).
Found on the continental slope on or just above muddy substrates (Ref. 5578). Feeds on cephalopods, small bony fishes, and crustaceans (Ref. 5578). Probably caught with bottom trawls (Ref. 30573).
Ovoviviparous, with 2 pups per litter (Ref. 5510).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
Status IUCN Red List (Ref. 130435)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Preferred temperature (Ref.
123201): 9.4 - 12.4, mean 11.4 °C (based on 17 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.2 ±0.56 se; based on food items.
Daya lenting (Ref.
120179): sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (Fec=2).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).